Friction-clutch.



No. 800,728. PATENTBD OCT. 3, 1905. G. H. ELLIS & O. I. LONGBNECKER.

FRIGTION CLUTCH.

APPLIOATION FILED MAB. a, 1905.

s SHEETS-SHEET 1.

L C71 @fedi 'i wf l ar n r er muy@ 7;-

No. 800,728. PATENTED OCT. 3, 1905. G. H. ELLIS L C. I. LONGENBCKER.

FRICTION CLUTCH.

APPLICATION FILED MAR. 8, 1905.

2 SHEETS-SHEET 2.

@a s V 44 4 25 l A y 4f gwg- 5 i546 4 S7-44g l f//y w u Z Jgll -v 392/7 /4 HV." *h llllllllllllmlll" Mmmm m llizsas': 6em @gillv Z115 (71M. Z E C/zarleiflgezeaer Uurrnle srarns PATENT OFFICE.

GEORGE H. ELLIS AND CHARLES I. LONGENECKER, OF CHICAGO, ILLI- NOIS, ASSIGNORS TO INTERNATIONAL HARVESTER COMPANY, A COR- PORATION OF NEIV JERSEY.

FRlCTlON-CLUTCH.

Specification of Letters Patent.

Patented Oct. 3, 1905.

To nl] 11,*710/11/ it 711/011/ con/cern:

Beit known that we, Gnonen H. ELLIS and CHAI-:Lus I. LoNGnNnciinr., citizens o f the United States, residing at Chicag'o, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Friction-Clutches, of which the following is a specification, reference being' had to the accompanying' drawings, forming' a part thereof.

Our invention relates to friction-clutches, and belong's to that class usually called single-face.7 It is particularly designed to be applied at the end of a driving-shaft having' a clutch member secured thereto.

It consists in a hollow-hub extension of the fixed clutch member, upon which is journaled the movable member, and a system of togglelevers is suitably mounted within the hollow hub and connected with the movable member in a manner to eng'ag'e or diseng'age it from the fixed member, therobject of the invention being to provide a clutch mechanism that is strong' and cheaply constructed and powerful in operation. W'e attain these objects by the mechanism illustrated in the accompanying' drawings, in which- Figure I is a plan view, partly in section, of the clutch mechanism. Eig. 2 is a side elevation, partly in section, of Eig. l along line A B. Fig. 3 is a plan view of one of the togg'le-links. Fig. 4 is a side elevation of Fig. 3. Fig. 5 is a plan view of the toggle-head, and Fig. 6 is a side elevation of Fig'. 5.

Similar numerals denote similar parts throughout the various views.

A shaft 7 has secured thereto at one end a pulley or iiy wheel 8, havingl the spokes 9 and l0. Secured to the spokes by means of the bolts 1I and l2 is a clutch member 13, provided with a friction-face I4 and an outwardlyextending hollow hub I5, adapted to receive a complementary clutch member I6, having' its hub portion 17 loosely journaledl thereon and provided with the removable friction-ring 18, the clutch member, as shown, forming' part of a pulley 19.

20 is a cap-piece journaled on the hub l5 outside the hub I7 and having the frictionsurface 2l adapted to engage therewith. The hollow hub l5 is provided with inwardly-projecting ear portions 22 and 22 at its outer end, that are provided with openings to receive the pins 23 and 24, that project beyond the ears and receive one end of the togglelinks 25. The toggle-links are made right and left and adapted to operate in series upon opposite sides of a long'itudinal center line.

They are provided with openings at their in-- ner ends that receive joint-pins 27 and 28, and rollers 29 and 3() are journaled upon the pins between each series of links, the pins projecting beyond the links, and are adapted to receive supplemental toggle-links 3l upon opposite sides of the center line.

33 is a tog'gle-head located within the hollow hub I5 at its inner end and provided with ear portions 34 and 35, through which pass joint-pins 36 and 37, that receive at their outer ends the inner ends of the supplemental toggle-links. The togg'le-head 33 is provided with longitudinally-disposed bosses 38 and 39, that are arranged between the ear portions 34 and 35 and have threaded openings therethrough adapted to receive the threaded ends of draw-bolts 40 and 4l, that pass through openings in the cap-piece 20 and inwardlyprojecting' g'uiding-ears 42 and 43 at the outer end of the hollow hub 15, the heads of the bolts being provided on their inner surfaces with a V-shaped tooth that is adapted to engage with corrugations in the surface of the cap-piece surrounding the openings for the bolts for the purpose of preventing any accidental turning' of the same.

The cap-piece 2O is provided with a central opening 44, adapted to form a guide for a longitudinally-sliding wedge 45, that contacts with the inner surfaces of the rollers 29 and 30, that are drawn together by means of springs 46, connected with the toggle-links 25. The links are provided with inwardlyprojecting lip portions 26, that are oppositely disposed, and the series form a box-shaped guide for the wedge. A hand-Wheel 47 is loosely journaled upon the outer end of the sliding wedge 45 and is held thereon by means of the nut 48.

In the operation of our device to engage the loose member of the clutch with the driving' member the operator grasps the handwheel 47 and pushes inward on the wedge 45, which operates to move the double toggles outward at their central portion through their contact with opposite sides of the wedge by means of the rollers, which results in a movement of the toggle-head longitudinally inward and a consequent drawing ii'nvard ot' the cap-piece by means ol the eouneetingbolts. The said eap-pieee li earing against the outer end ot' the hub 1T with its Ylrietionsurface 21 will move said hub longitiulinally i inward and cause the friction-surface ol: the ring 18 to Contact with the trietion-laee oll the l'iXed member oi the eluteh. As the lrietion-surfaces beeome worn the toggles may be adjusted by means ol" the draw-bolts to compensate therefor.

Vv'hat we elaim as our invention, and desire to seeure by Letters Patent, is

l. .In a Vt'rietion-ehu'ieh, the combination ol a elnteh member provided with a Vfriction-surface and a hollow hub, a second eluteh mein-` ber havinga trietion-surt'aee and tree to move longitudinally along said hollow hub upon which it is journaled, a third eluteh member, having eorrespondii'ig t'rietion-surlaees, journaled upon said hollow hub and Yt'ree to move longitudinally thereon between said lirst two members, a toggle-lever within said hollow hub having one end eonneeted therewith and its opposite end eonneeted with the seeond eluteh member, and means lor operating said toggle to move said second eluteh member longitudinallyY of the hollow hub.

2. In a friction-clutch, the eombination of a eluteh member provided with a friction-surface and a hollow hub, a seeond eluteh member having' a trietion-sm't'aee and vtree te move longitudinally along said hollow hub upon which it is journaled, a third eluteh member, having Corresponding frietion-surtaees, journaled upon said hollow hub and free to mov longitudinally thereon between said lirst two members, a toggle-lever within said hollow hub having one end eonneeted therewith and its opposite end eonneeted with the second eluteh member, and a wedge slidably mounted within the hollow hub and adapted to operate said toggle-lever in a manner to move said second eluteh member in Contact with said third eluteh member.

3. In a frietion-eluteh, the Combination ot' a eluteh member provided with a iirietion-su rvface and a hollow hub, a Second eluteh member havingl a friction-surface and free to move longitudinally along said hollow hub, upon which it is journaled, a third eluteh member having' Corresponding friction-Surfaces, journaled upon said hollow hub and tree to move longitudinally thereon between said lirst two members, two toggle-levers within said hollow hub upon opposite Sides of its axial line. a toggle-head, said levers having one end eonneeted to said toggle-head and their opposite ends eonneeted with said hollow hub, a eonneetion between said toggle-head and said Second eluteh member, and means ior moving Said toggle-levers in a manner to move said second eluteh member in engagement with said third member.

1i. In a friction-clutch, the Combination of a eluteh member provided with a lrietion-surl'aee and a. hollow hub, a seeond eluteh member having a lrietioirsurlaee and lree to move lougitiulinally along said hollow hub, upon whieh it is journaled, a third eluteh member, having eorrespomling Ylrietion-suriaees, journaled upon said hollow hub and Vtree to move longitudinally thereon between said lirst two members, two toggledevers within said hollow hub upon opposite sides ot its axial line, a toggle-head,said levers having one end eonneeted to said toggle-heail and their opposite ends eonneeted with said hollow hub, a eonneetion between said toggle-head and said seeond elnteh member, and a wedge slidably i'nonnted within the hollow hub and adapted to operate said toggle-levers in a manner to move said seeond elnteh member in Contact with said third member.

,ln a lrietion-eluteh, the combination ol1 a eluteh member provided with a friction-su rvtaee and a hollow hub, a seeond elnteh member havingl a llirietion-surlaee and 'free to move longitui'limtlly along said hollow hub, upon which it ie ir iii-naleil, a third eluteh member, having corresponding 'friction-surlaees, journaled upon said hollow hub and tree to move longitudinally thereon between said lirst two members, two toggle-levers within said hollow hub upon opposite sides ot its axial line, a toggle-head, said levers havingl one end eonnected to said toggle-head and their opposite ends connected with said hollow hub, an adinstable connection between said toggle-head and said second eluteh member, and a slidable wedge mounted within the hollow hub and ad a I'ited to operate said toggle-levers in a manner to move said seeond eluteh member in oon- 'taet with said third member. p

6. in a friction-clutch, the eox'nbination ot' a eluteh member provided with a Alirietion-surtace and a hollow hub, a second oluteh member having a lrietion-surtaee and free to move longitudinally along said hollow hub, upon whieh it is journaled, a third eluteh member having' corresponding 'friction-surfaces, journaled upon Said hollow hub and lree to move longitudinally thereon between said iirst two members, two op1j ositely-disposed and inwardly-rejecting ears within said hollow hub at one end, parallel pins journaled in said ears, a series oll toggle-links Connected with opposite ends ot' said pins, a toggle-head free to move within the opposite end ot' said hollow hub, parallel pins journaled in said head, a seeond seriesotI toggle-links connected with opposite ends ot said pins, -joint-pins eonneeting the two series ot' links, rollers journaled on the eentral portion otl the joint-pins, bolts eonneeting said toggle-head with said seeond eluteh member. an axially-disposed movable wedge within said hub, eontaeting with Said rollers in a manner to eauee the links to move said toggle-head to draw the Clutch-surfaces in eontaet.

7. .In a friction-clutch, the combination of a clutch member provided with a friction-surface and a hollow hub, a second clutch member having a friction-surface and free to move longitudinally along said hollow hub, upon which it is journaled, a third clutch member having corresponding friction-surfaces, journaled upon said hello7 hub and free to move longitudinally thereon between said lirst two members, two opposite] y -disposed and inwardly-projecting ears within said hollow hub at one end, parallel pins journaled in said ears, a series of links connected with opposite ends of said pins, a toggle-head free to move within the opposite end of said hollow hub, parallel pins journaled in said head, a second series of links connected with opposite ends of said pins, joint-pins connecting the two series of links, rollers journaled on the central portion of the joint-pins, adjustable bolts connecting said toggle-head with said second clutch member, an axially-disposed movable wedge within said hub supported by a bearing in said second clutch member and by projecting lips on the adjacent links and contacting with said rollers in a manner to cause the links to move said toggle-head to draw the clutch-surfaces in contact.

8. In a friction-clutch, the combination of a clutch member provided with a friction-surface and a hollow hub, a second clutch member having a friction-surface and free to move longitudinally along said hollow hub, upon which it is journaled, a third clutch member having corresponding` friction-surfaces, journaled upon said hollow hub and free to move longitudinally thereon between said first two members, two oppositely-disposed and inwardly-projecting ears within said hollow hub at one end, parallel pins journaled in said ears, a series of toggle-links connected with opposite ends of said pins, a tog'gle-head. free to move within the opposite end of said hollow hub, parallel pins journaled in said head, a second series of toggle-links connected with opposite ends of said pins, joint-pins vconnecting the two series of links, rollers journaled on the joint-pins, adjustable draw-bolts connecting said toggle-head with said second clutch member, an axially-disposed movable wedge within said hub, supported by a bearing in said second clutch member, a handwhcel journaled upon the projecting end of the wedge and adapted to adjust it longitudinally in contact with said rollers to move said links in one direction in a manner to cause the links to move said toggle-head to draw the clutch-surfaces in contact.

9. In a friction-clutch, the combination of a clutch member provided with a friction-surface anda hollow hub, a second clutch member having' a Vfriction-surface and free to move longitudinally along said hollow hub, upon which it is journaled, a third clutch member havingI corresponding friction surfaces, journaled upon said hollow hub and free to move longitudinally thereon between said first two members, two oppositely-disposed and inwardlyprojecting ears within said hollow hub at one end, parallel pins journaled in said ears, a series of toggle-links connected with opposite ends of said pins, a toggle-head free to move within the opposite end of said hollow hub, parallel pins journaled in said head, a second series of toggle-links connected with opposite ends of said pins, joint-pins connecting the two series of links, rollers journaled on the joint-pins, adjustable draw-bolts connecting` said toggle-head with said second clutch member, an axially-disposed longitudinally-movable wedge within said hub, supported by a bearing in said second clutch member, and contacting with said rollers, a hand-wheel journaled upon the projecting end of the wedge adapted to move it longitudinally to separate said rollers, and springs operative to hold said rollers in contact with said wedge.

l0. In a friction-clutch, the combination of a clutch member provided with afriction-surface and a hollow hub, a second clutch member having a friction-surface and free to move longitudinally along said hollow hub, upon which it is journaled, a third clutch member having corresponding frictionsurfaces, journaled upon said hollow hub and free to move longitudinally thereon between said first two members, two oppositely-disposed and inwardly- Aprojecting ears within said hollow hub at one end, parallel pins journaled in said ears, aseries of toggle-links connected with opposite ends of said pins, a toggle-head free to move within the opposite end of said hollow hub, parallel pins journaled in said head, a second series of toggle-links connected with opposite ends of said pins, joint-pins connecting the two series of links, rollers journaled on the joint-pins, draw-bolts connecting said togglehead with said second clutch member, an axially-disposed longitudinally-movable wedge within said hub and contacting with said rollers, means for moving' said wedge, one of said series of toggle-links being provided withinwardly -projecting oppositely-disposed lips forming a guiding-support for said wedge, and springs connecting opposing links of the series in a manner to hold said rollers in contact with said wedge.

In witness whereof we hereto affix our signatures in presence of two witnesses.

GEORGE H. ELLIS. CHARLES I. LONGENECKER. I/Vitnesses:

M. E. HoL'roN, OSCAR A. ANDERsoN.

IOO 

